To dream of carrying a knife symbolizes anger, hostility, and/or separation. Perhaps you wish to cut off a certain aspect of your life.
To see a dull knife indicates you received minor gains and benefits from all your hard work.
To dream that you are wounded by a knife notes that you or someone else is affected by spiteful remarks or malicious rumor.
To spot an electric knife in your dream represents your power to immediately uncover the truth regarding a situation.